Question

i shall return.......a week

Answer 1

I shall return in/ within a week

Answer 2

Answer:

I shall return.......a week.

Explanation:

• Preposition as its name suggests is a part of speech which comes before a noun or pronoun and connects it to another part of sentence.
• Examples:  The lamp is on the table.

                           We will party in November.

                          I sent an application by email.

                          Look at that flower.

• Within : is used to show something is in boundaries or limits or an estimate. Similarly In: is used to describe the location of a particular thing or an individual. These two words are often used in combination while writing sentences.

• Here, in this question the correct preposition should be : in/ within
• That is: I shall return in a week.
• or I shall return within a week.

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